1 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3 Module: FGAccelerometer.cpp
5 Date started: 9 July 2005
7 ------------- Copyright (C) 2005 -------------
9 This program is free software; you can redistribute it and/or modify it under
10 the terms of the GNU Lesser General Public License as published by the Free Software
11 Foundation; either version 2 of the License, or (at your option) any later
14 This program is distributed in the hope that it will be useful, but WITHOUT
15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
16 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
19 You should have received a copy of the GNU Lesser General Public License along with
20 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21 Place - Suite 330, Boston, MA 02111-1307, USA.
23 Further information about the GNU Lesser General Public License can also be found on
24 the world wide web at http://www.gnu.org.
26 FUNCTIONAL DESCRIPTION
27 --------------------------------------------------------------------------------
30 --------------------------------------------------------------------------------
32 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
33 COMMENTS, REFERENCES, and NOTES
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
36 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
38 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
40 #include "FGAccelerometer.h"
48 static const char *IdSrc = "$Id: FGAccelerometer.cpp,v 1.8 2009/10/24 22:59:30 jberndt Exp $";
49 static const char *IdHdr = ID_ACCELEROMETER;
51 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
53 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
55 FGAccelerometer::FGAccelerometer(FGFCS* fcs, Element* element)
56 : FGSensor(fcs, element),
57 FGSensorOrientation(element)
59 Propagate = fcs->GetExec()->GetPropagate();
60 MassBalance = fcs->GetExec()->GetMassBalance();
61 Inertial = fcs->GetExec()->GetInertial();
63 Element* location_element = element->FindElement("location");
64 if (location_element) vLocation = location_element->FindElementTripletConvertTo("IN");
65 else {cerr << "No location given for accelerometer. " << endl; exit(-1);}
67 vRadius = MassBalance->StructuralToBody(vLocation);
72 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
74 FGAccelerometer::~FGAccelerometer()
79 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
81 bool FGAccelerometer::Run(void )
83 // There is no input assumed. This is a dedicated acceleration sensor.
85 vRadius = MassBalance->StructuralToBody(vLocation);
87 //gravitational forces
88 vAccel = Propagate->GetTl2b() * FGColumnVector3(0, 0, Inertial->gravity());
91 vAccel += (Propagate->GetUVWdot()
92 + Propagate->GetPQRdot() * vRadius
93 + Propagate->GetPQR() * (Propagate->GetPQR() * vRadius));
95 // transform to the specified orientation
100 ProcessSensorSignal();
105 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
106 // The bitmasked value choices are as follows:
107 // unset: In this case (the default) JSBSim would only print
108 // out the normally expected messages, essentially echoing
109 // the config files as they are read. If the environment
110 // variable is not set, debug_lvl is set to 1 internally
111 // 0: This requests JSBSim not to output any messages
113 // 1: This value explicity requests the normal JSBSim
115 // 2: This value asks for a message to be printed out when
116 // a class is instantiated
117 // 4: When this value is set, a message is displayed when a
118 // FGModel object executes its Run() method
119 // 8: When this value is set, various runtime state variables
120 // are printed out periodically
121 // 16: When set various parameters are sanity checked and
122 // a message is printed out when they go out of bounds
124 void FGAccelerometer::Debug(int from)
126 string ax[4] = {"none", "X", "Y", "Z"};
128 if (debug_lvl <= 0) return;
130 if (debug_lvl & 1) { // Standard console startup message output
131 if (from == 0) { // Constructor
132 cout << " Axis: " << ax[axis] << endl;
135 if (debug_lvl & 2 ) { // Instantiation/Destruction notification
136 if (from == 0) cout << "Instantiated: FGAccelerometer" << endl;
137 if (from == 1) cout << "Destroyed: FGAccelerometer" << endl;
139 if (debug_lvl & 4 ) { // Run() method entry print for FGModel-derived objects
141 if (debug_lvl & 8 ) { // Runtime state variables
143 if (debug_lvl & 16) { // Sanity checking
145 if (debug_lvl & 64) {
146 if (from == 0) { // Constructor
147 cout << IdSrc << endl;
148 cout << IdHdr << endl;